{"id":"https://openalex.org/W1983952331","doi":"https://doi.org/10.1016/s0925-7721(02)00113-x","title":"The visibility graph of congruent discs is Hamiltonian","display_name":"The visibility graph of congruent discs is Hamiltonian","publication_year":2003,"publication_date":"2003-04-30","ids":{"openalex":"https://openalex.org/W1983952331","doi":"https://doi.org/10.1016/s0925-7721(02)00113-x","mag":"1983952331"},"language":"en","primary_location":{"id":"doi:10.1016/s0925-7721(02)00113-x","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0925-7721(02)00113-x","pdf_url":"https://www.sciencedirect.com/science/article/pii/S092577210200113X/pdf","source":{"id":"https://openalex.org/S165542689","display_name":"Computational Geometry","issn_l":"0925-7721","issn":["0925-7721","1879-081X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computational Geometry","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.sciencedirect.com/science/article/pii/S092577210200113X/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112711900","display_name":"David Rappaport","orcid":null},"institutions":[{"id":"https://openalex.org/I204722609","display_name":"Queen's University","ror":"https://ror.org/02y72wh86","country_code":"CA","type":"education","lineage":["https://openalex.org/I204722609"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"David Rappaport","raw_affiliation_strings":["School of Computing, Queen's University, Kingston, Ontario, K7L 3N6, Canada","School of Computing Queen's University, Kingston, Ontario, K7L 3N6, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computing, Queen's University, Kingston, Ontario, K7L 3N6, Canada","institution_ids":["https://openalex.org/I204722609"]},{"raw_affiliation_string":"School of Computing Queen's University, Kingston, Ontario, K7L 3N6, Canada","institution_ids":["https://openalex.org/I204722609"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5112711900"],"corresponding_institution_ids":["https://openalex.org/I204722609"],"apc_list":{"value":2180,"currency":"USD","value_usd":2180},"apc_paid":null,"fwci":0.4424,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.76715411,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"25","issue":"3","first_page":"257","last_page":"265"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12923","display_name":"Digital Image Processing Techniques","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9947999715805054,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/visibility-graph","display_name":"Visibility graph","score":0.8025041818618774},{"id":"https://openalex.org/keywords/disjoint-sets","display_name":"Disjoint sets","score":0.6159517765045166},{"id":"https://openalex.org/keywords/constructive","display_name":"Constructive","score":0.6072765588760376},{"id":"https://openalex.org/keywords/hamiltonian","display_name":"Hamiltonian (control theory)","score":0.5814509391784668},{"id":"https://openalex.org/keywords/hamiltonian-path","display_name":"Hamiltonian path","score":0.5683063268661499},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.5572806596755981},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.533488392829895},{"id":"https://openalex.org/keywords/visibility","display_name":"Visibility","score":0.5263018608093262},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.45072153210639954},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.39020419120788574},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3722747564315796},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1813724935054779},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.1557520627975464},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.12137418985366821},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.09641537070274353}],"concepts":[{"id":"https://openalex.org/C173362246","wikidata":"https://www.wikidata.org/wiki/Q8216024","display_name":"Visibility graph","level":3,"score":0.8025041818618774},{"id":"https://openalex.org/C45340560","wikidata":"https://www.wikidata.org/wiki/Q215382","display_name":"Disjoint sets","level":2,"score":0.6159517765045166},{"id":"https://openalex.org/C2778701210","wikidata":"https://www.wikidata.org/wiki/Q28130034","display_name":"Constructive","level":3,"score":0.6072765588760376},{"id":"https://openalex.org/C130787639","wikidata":"https://www.wikidata.org/wiki/Q5645293","display_name":"Hamiltonian (control theory)","level":2,"score":0.5814509391784668},{"id":"https://openalex.org/C86524685","wikidata":"https://www.wikidata.org/wiki/Q273037","display_name":"Hamiltonian path","level":3,"score":0.5683063268661499},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.5572806596755981},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.533488392829895},{"id":"https://openalex.org/C123403432","wikidata":"https://www.wikidata.org/wiki/Q654068","display_name":"Visibility","level":2,"score":0.5263018608093262},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.45072153210639954},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.39020419120788574},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3722747564315796},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1813724935054779},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.1557520627975464},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.12137418985366821},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.09641537070274353},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.0},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/s0925-7721(02)00113-x","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0925-7721(02)00113-x","pdf_url":"https://www.sciencedirect.com/science/article/pii/S092577210200113X/pdf","source":{"id":"https://openalex.org/S165542689","display_name":"Computational Geometry","issn_l":"0925-7721","issn":["0925-7721","1879-081X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computational Geometry","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.139.5085","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.139.5085","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.queensu.ca/home/daver/Pubs/MyPDF/HamDisc.pdf","raw_type":"text"}],"best_oa_location":{"id":"doi:10.1016/s0925-7721(02)00113-x","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0925-7721(02)00113-x","pdf_url":"https://www.sciencedirect.com/science/article/pii/S092577210200113X/pdf","source":{"id":"https://openalex.org/S165542689","display_name":"Computational Geometry","issn_l":"0925-7721","issn":["0925-7721","1879-081X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computational Geometry","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1983952331.pdf","grobid_xml":"https://content.openalex.org/works/W1983952331.grobid-xml"},"referenced_works_count":20,"referenced_works":["https://openalex.org/W115622331","https://openalex.org/W307896644","https://openalex.org/W1985148525","https://openalex.org/W1998583115","https://openalex.org/W2000365433","https://openalex.org/W2003073299","https://openalex.org/W2020550704","https://openalex.org/W2023789975","https://openalex.org/W2028883079","https://openalex.org/W2045482243","https://openalex.org/W2057568938","https://openalex.org/W2085641990","https://openalex.org/W2139230981","https://openalex.org/W2149906774","https://openalex.org/W2150475707","https://openalex.org/W2982209274","https://openalex.org/W4210521336","https://openalex.org/W4212788998","https://openalex.org/W4237169760","https://openalex.org/W6682377121"],"related_works":["https://openalex.org/W2743652671","https://openalex.org/W2911638885","https://openalex.org/W2032709970","https://openalex.org/W2066813664","https://openalex.org/W2519024191","https://openalex.org/W2159176266","https://openalex.org/W2963183586","https://openalex.org/W2094166299","https://openalex.org/W4388826510","https://openalex.org/W1608416195"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-08-01T09:00:35.917206","created_date":"2025-10-10T00:00:00"}
